Containing footage from the UK's trouble spots and riots around the world, it is a shocking but true look at the many moods of confrontation - the mindless rampage, the peaceful protest that gets out of control, the minor incident that suddenly turns in to a state of emergency. See what it's like to be in the thick of things when the you-know-what hits the fan. And find out how police training and the methods of dealing with unrest are changing along with the face of protests.